us here, world news is next. we'll see you again at 6:00. >>> welcome to world news tonight. on the march, a powerful flash flood. water rescues, strong winds. are our holiday plans across the country about to be up ended? >> the hero behind the wheel a brave driver saved her small passengers from a hijacker. >>> and a president remembered. america, 50 years ago. and tonight the first lady who showed strength in grief. >> i said if anything happens we're all going to stay right here with you. >> the secret interview recorded just months after his death. >>> good evening to you, welcome on this friday night. this day on which we remember a young president, shot 50 years ago. and in a moment, we will take you around the country for the moving tributes. but first, tonight, we also have news about something so many of us are doing together right now. going over our final plans for thanksgiving week. and we have a big warning about a rainy, snowy threat to the 43 million americans, who will travel for thanksgiving. take a look at this, a storm so big, and so messy, you may want to